JPH0239165A - Image forming device - Google Patents

Abstract

PURPOSE:To achieve interrupting copy through the use of an automatic document feeder by controlling a switching means when an interrupting means is operated, and providing a control means which distributes separately a transferred material, on which an image is formed, to either first or second ejecting part. CONSTITUTION:The first and second paper ejecting trays 41 and 42 are provided on the side of the main body of a copying machine 1. In the copying condition where the automatic document feeder 3 is used, when a document is set on an interrupting tray 3K of the automatic document feeder 3, a copy interrupting mode is set in a control part. Under this condition, the document is copied; the paper having the image of the document is ejected by a delivery roller pair 22, and is then ejected onto the second paper ejecting tray 42 at a delivery gate 46. Thus, interrupting copy is made possible even when image formation using a document feeding device is carried out.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Field of Industrial Application) This invention relates to an automatic document feeder and an order υF.
The present invention relates to an image forming apparatus that uses a paper tray.

(Prior Art) As is well known, in conventional electronic summer photocopying machines, interrupt copying is performed to copy another document image while copying is being performed using an automatic document feeder. It was impossible.

Furthermore, even when forced copying is performed, if only one paper ejection tray is available, the copied paper is ejected overlapping the paper that was copied before the interruption. For this reason, it is troublesome to distinguish and take out sheets of paper that have been copied during an interruption and sheets that have been normally copied.

In addition, in a copying machine that uses a sorter device, interrupt 1
It is conceivable to switch the paper ejection tray for summer copying and earlier copying, but the paper copying machine with a sorter device is expensive.

(Problems to be Solved by the Invention) This invention provides that even if it is not possible to perform interrupt copying using an automatic document feeder, and even if interrupt copying is forcibly performed, the copied paper is This solution solves the problem of paper being ejected to the same paper output tray as the paper that is copied, making it cumbersome to take out the paper, and further increasing costs when using a sorter device. The present invention aims to provide an image forming apparatus that can perform interrupt copying using the printer, facilitate the removal of paper for interrupt copying and normal copying, and furthermore, reduce the increase in costs. be.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a document table on which a document is placed, a document feeding means for feeding the document to the document table, and an interrupt provided in the document feeding device. means, and 1 g of the image of the original placed on the original platen! An image forming means for forming information on a transferred material, first and second υF output sections from which the transferred material on which an image has been formed by the image forming means are discharged, and these first and second discharge sections. and a control means for controlling the switching means and distributing the transfer target on which the image is formed to the first and second discharge sections when the interrupt means is operated. There is.

(Function) The present invention controls switching of the switching means according to the operation of the interrupt means provided in the document feeding means by the control means,
By switching between the first and second discharge portions from which the transferred image is discharged, it is possible to interrupt the image formation using the document feeding means, and furthermore,
The transfer material on which an image has been formed by the interruption and the material to be transferred on which an image has been formed by normal operation can be ejected to separate discharge sections, making it easy to take out the material to be transferred, and Since the structure is simple, it is possible to suppress the increase in cost.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 schematically show an image forming apparatus of the present invention, such as a copying machine.

A document table (transparent glass) 2 for supporting a document is fixed to the top surface of the copying machine main body 1. The document table 2 is provided with a fixed scale 21 that serves as a reference for setting the document, and furthermore, an automatic document feeder 3 is provided near the document table 2 to automatically set the document on the document table 2. There is.

The document set on the document table 2 is exposed and scanned by an optical system consisting of an exposure lamp 4 and mirrors 5, 6, and 7 moving back and forth along the lower surface of the document table 2. In this case, mirror 6.7 moves at half the speed of mirror 5 so as to maintain the optical path length. The light reflected from the original by the scanning of the optical system, that is, the light reflected from the original by the light irradiation of the exposure lamp 4 is
After being reflected by the mirror 5.6.7, it passes through the variable magnification lens block 8 and is further reflected by the mirror 9. 92 and 93 and guided to the photoreceptor tram 10, so that an image of the document is formed on the surface of the photoreceptor drum 10.

The photosensitive drum 10 rotates in the direction of the arrow a in the figure, and the surface is first charged by the charger 11 for:
Thereafter, the image is subjected to slit exposure in the exposure section, thereby forming an electrostatic latent image on the surface. This electrostatic latent image is stored in a developing unit 12 which contains, for example, red or black toner, and is selectively operated as required. 122
A visible image is created when toner is attached to the surface.

On the other hand, paper (transferring material) is delivered from the selected upper paper feed cassette 131 or lower paper feed force center 13□ to the feed rollers 141 and 142 and the pair of rollers 15. The sheets are taken out one by one by the paper guide path 161 162.
The image is guided through the image to a pair of registration rollers 17, and guided to a transfer section by the pair of registration rollers 17.

Further, the upper paper feed cassette yl□1B+ is provided with a guide 13a for manual paper feed, and the paper guided by this guide 13a for manual paper feed is fed to the feed roller. 14a1 is guided to a pair of registration rollers 17 via the pair of rollers 151 and the paper guide path 16, and guided to a transfer section by the pair of registration rollers 17. Here, the paper feed cassettes 13□, 132 are removably provided at the lower right end of the main body 1, and one of them can be selected on the operation panel described later.

The paper sent to the transfer section comes into close contact with the surface of the photoreceptor drum 10 at the transfer charger 18, so that the toner image on the photoreceptor drum 0 is transferred by the action of the charger 18. The transferred paper is separated from the photoreceptor drum 10 by one distance by the action of one peeling charger and placed on the conveyor belt.
0, and is sent to a fixed roller 21, which serves as a fixing device, provided at the end thereof, and the transferred image is fixed by passing there. After the fixing, the paper is discharged to the outside of the main body 1 by a pair of delivery rollers 22.

After the photosensitive drum 10 has been transferred, residual toner on the surface thereof is removed by a cleaner 24, and a static elimination lamp 22 is used to remove residual toner.
5, the afterimage is erased to return to the initial state.

Incidentally, 26 is a cooling fan for preventing the temperature inside the main body 1 from rising. Further, the exposure lamp 4 and the mirror 5 are connected to the first
A mirror 6.7 is provided on the carriage 28a, and a mirror 6.7 is provided on the second carriage 28b. The first carriage 28a is stopped at a position (home position) in the copying standby section, which indicates the copyable range of the original defined by the copying magnification and paper size, which are indicated by dotted lines in FIG. 1, for example.

On the other hand, on the side surface of the copying machine main body 1, there are first and second paper ejection trays 41 and 42 from which the paper on which the image has been formed is ejected.
is provided. These first and second paper output trays 41
．． 42 are arranged at a predetermined interval in the vertical direction, and a pair of transport rollers 43, 44 are provided at the base ends of the first and second paper discharge trays 41, 42, respectively. A transport path 45 is provided between the transport roller pair 44 and the delivery roller pair 22, and a transport path 45 is provided between the transport roller pair 43 and the delivery roller pair 22 for the paper to be delivered by the delivery roller pair 22. A gate 46 is provided to guide the toner to the pair of transport rollers 43 or the transport path 45.

FIG. 3 and FIG. 4 respectively show the above-mentioned conveyor roller pair 43.4.
This shows an embodiment of the drive mechanism of No. 4, in which these conveying roller pairs 43 and 44 are driven via a sending roller pair 22.

In FIG. 3, one roller of the pair of delivery rollers 22 includes:
A gear 51 is provided coaxially, and a gear 52 is provided on this gear 51.
．． 53 and 54 are sequentially meshed with each other, the gear 52 is meshed with a gear 55 provided coaxially with one roller of the transport roller pair 43, and the gear 54 is meshed with the transport roller pair 4.
A gear 56 provided coaxially with one of the rollers of 4 is engaged. Since the sending roller pair 22 is driven, the conveying roller χ·1 is transferred via these gears 51 to 56.
43 and 44 are driven.

In FIG. 4, a pair of delivery rollers 22, a pair of transport rollers 43.
A threaded pulley 6 is coaxially attached to one roller of each of the rollers 44.
1.62.63 are provided. These pulleys 61~
63 has been given a timing held 64 or c),
When the delivery roller 2122 is driven, the conveyance rollers 43 and 44 are driven.

Further, in FIG. 1, the automatic document feeder 3 includes a document import section 31 and a document conveyance section 32. The take-in section 31 is provided with a standard tray 3a on which originals are placed, and the paper placed on the label 1 tray 3a is taken in by a paper feed roller 3b.

This captured document is separated by a pair of separation rollers 3c that rotate in opposite directions.

It is guided to the conveying section 32 by the aligning roller pair 3d.

On the other hand, the transport section 3. can be opened and closed with respect to the document table 2, and the conveyance section 32 is provided with a conveyance belt 3e for conveying the document supplied from the taking-in section 31 and setting it along the fixed scale 21. There is. This conveyor belt 3e is stretched around driving boobies J3f and 3g, and is further pressed against the document table 2 by i number of suppression rollers 3h. Further, a conveyance path 31 is provided in the vicinity of the drive pulley 3g, and the original after the reduction is transferred to the surface of the conveyance unit 32 via the conveyance path 31 by the operation of the conveyance belt 3e. The paper is discharged to the paper discharge tray 3j.

Further, near the standard tray 3a of the intake section 31,
An interrupt tray 3k is provided which can be opened and closed freely. This interrupt tray 3 is normally rotated as shown by the solid line in the figure, and when interrupt copying is to be performed, it is rotated as shown by the dotted line in the figure. At the tip of this interrupt tray 3, there is a fifth
As shown in the figure, an interrupt detection sensor 31 is provided, which is configured by, for example, a microswitch. This interruption detection sensor 31 is turned on by the weight of the document placed on the interruption tray 3k, and detects interruption copying.

The mounting position of the interrupt detection sensor 31 is not limited to the tip of the interrupt tray 3.

FIG. 6 shows the interrupt detection sensor 31, for example, the reception section 3]
This figure shows the case where it is provided near the base end of the interrupt tray 3 inside the interrupt tray 3. This interruption detection sensor 31 is provided with a movable element 3m, and when the movable element 3m is moved by a document placed on the interruption tray 3k, the interruption detection sensor 31 is turned on.

FIG. 7 shows an operation panel 30 provided on the main body 1 of the copying machine. 30 is a copy key that commands the start of copying
30. 303 is a numeric keypad for setting the number of copies, etc.; 303 is a display section for displaying the operating status of each section, paper jams, etc.;
4 is a cassette selection key for selecting the upper and lower paper feed cassettes 131 and 132; 305 is a cassette display section for displaying the selected cassette; 306 is a magnification setting key for setting the copy enlargement/reduction magnification in a predetermined relationship; 307 is an enlargement key. ,
A zoom key 308 for steplessly setting the reduction magnification is a display section that displays the set magnification, 309 is a density setting section for setting the 1-sum photo density, and 30a is for specifying the developing device 121 containing, for example, red toner. The red designation key 30b designates, for example, the developing device 122 containing black toner, and the black designation key 3c is an interrupt key operated when performing interrupt copying.

FIG. 8 shows the (1) configuration of the main parts of the control system.

The control section 71 performs overall control of the copying machine main body 1, and is implemented by a microcomputer, for example. The control section 71 is connected to the t'D panel, the interrupt detection sensor 31, a charger (not shown), and an exposure lamp, as well as a motor drive circuit 72 and a solenoid drive circuit 73. The motor drive circuit 72 integrally drives a scanning motor 74 that drives the exposure lamp 4 and the mirror 5, 6, 7, a photosensitive drum 105 m conveying belt 20, a fixing roller 21, and a rough outlet 122. A motor 75 and a motor 76 provided in the automatic document feeder 3 and driving the conveyor belt 3e are connected. Further, a solenoid 77 for driving the blade of the cleaner 24, a solenoid 78 for driving the gate 46, etc. are connected to the solenoid drive circuit 7B.

The copying operation will be explained with reference to the above (in the bt configuration, the control operation of the control section 71 shown in FIG. 9).

First, a normal copying operation using the automatic document feeder 3 will be explained.

For example, as shown in FIG.
), the motor 76 and the like are driven by the motor drive circuit 72, and the automatic document feeder 3 is operated (step 5T).
2). 1 of the originals set on the standard tray 3a.
A sheet is taken in by the take-in section 31 and set along the fixed scale 2 of the document table 2 by the conveyance section 3°.

In this state, the motors 74, 75, etc. are driven by the motor drive circuit 72, and the above-described copying operation is performed (steps ST3 to ST6). That is, the original is exposed and scanned by the exposure lamp 4, and according to this exposure scan, the original image is formed as an electrostatic 781 image on the photoreceptor drum 1 ( ). □
The image is developed by the transfer charger 18 and transferred onto a sheet of paper fed from the paper feed cassette 131, for example.

This paper is transferred to the photosensitive drum 10 by a peeling charger 19.
111 away from the recording medium, and is supplied to the fixing roller 21 by the conveyor belt 20. This fixing roller 21 fixes the
The printed paper is delivered to the copying machine main body 1 by a pair of delivery rollers 22.
sent to the outside.

At this time, the gate 46 is distributed to the solenoid drive circuit 7.
3, the solenoid 77 is turned off by the solenoid 77, and the conveying roller pair 43, 44 is driven together with the delivery roller pair 22. Therefore, the paper discharged by the pair of delivery rollers 22 is sorted and guided to the conveyance roller 43 by the gate 46, and is discharged to the first paper discharge tray 41 by the pair of conveyance rollers 43 (step 5T4).

When the copying of the -th original is completed in this way, the second original is copied by the above-mentioned operation (steps ST6-2), and when all the originals have been copied, the copying operation is ended. Ru.

On the other hand, in the copying state using the automatic document feeder 3 as described above, the interrupt tray 3k of the automatic document feeder 3
When the document D2 is rotated as shown in FIG. 5 and a plurality of documents D2 are set on the interrupt tray 3k, the interrupt detection sensor 3
1 is turned on, and the interrupt copy mode is set in the control section 71 (step ST5 to step 5T7). In this interrupt copy mode, when the copy key 30+ is operated again (step 5T7), one document set on the interrupt tray 3k is captured by the capture unit 3 and set on the document table 2 (step 5T8). In this state, the copying operation of the original is performed (step 5T9),
The paper on which the original image has been formed is ejected to the outside of the copying machine main body 1 by a pair of delivery rollers 22. At this time, the solenoid 77 is turned on by the solenoid drive circuit 73 (step 5TIO), and the gate 46 is placed in the state shown by the dotted line in FIG. 1 for distribution. Therefore, the delivery roller pair 2
2, the paper is sorted and guided to a conveyance path 45 by a gate 46, and then transferred to a second conveyance path 45 by a pair of conveyance rollers 44.
(Step 5TII).

When there is a document on the interrupt tray 3 and the interrupt detection sensor 31 is turned on, when interrupt copying of one document is performed as described above, the interrupt tray 3k is copied as described above. The second sheet of paper that has been set in 2 is set on the document table 2, and a copying operation of this document is performed (steps 5T12 to 8). Further, when there is no document on the interrupt tray 3k and the interrupt detection sensor 31 is turned off, the interrupt copy mode is canceled and the copy state before the interrupt is restored (steps 5T12 to 5TI). In this state, the copy key 301
When you operate , the original D1 set on the standard tray 3a is set on the original platen 2 (step 5T2).This original is exposed and scanned and transferred onto paper, and the paper on which this image is formed is sorted by 46, conveyance roller pair 43
The paper is discharged to the first paper discharge tray 41 via the paper.

According to the above embodiment, the automatic document feeder 3 is interrupted by l.
In addition to providing the tray 3k, an interruption detection sensor 31 is provided which detects interruption copying by detecting the paper set on the interruption tray 3k. Therefore, in the copying state using the automatic document feeder 3,
This allows for easy interruption copying.

Moreover, the copying machine main body 1 has first and second paper output trays 43.
44 is provided, and a gate 46 is provided to distribute the paper ejected from the copying machine main body 1 to the first paper ejection tray 43 or the second paper ejection tray 44. Normal copying using automatic feeder 3,
It is possible to switch between interrupt copying and copying. Therefore, in the case of normal copying using the automatic document feeder 3, the paper is ejected to the first paper ejection tray 43, and in the case of interrupt copying, the paper is ejected to the second paper ejection tray 44. Therefore, it is possible to easily take out the paper that has been copied by normal copying or interrupt copying.

Further, in the above embodiment, the first and second paper ejection trays 43.4
4 and the distribution thereof is a simple structure consisting of a gate 46 and the like, so compared to the case where a sorter device is used, the increase in cost can be suppressed.

In the above embodiment, the explanation has been made regarding interrupt copying in a state where the automatic document feeder 3 is used. , operation panel 30
The mode can also be switched even when the interrupt copy mode is set by operating the interrupt copy key 30e.

It goes without saying that various other modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As described in detail above, according to the present invention, the control means switches and controls the switching means in response to the operation of the interrupt means provided in the document feeding means, and the transferred material on which an image is formed is controlled by the control means. By switching between the first and second ejecting sections from which the image is ejected, it is possible to perform an interruption even during image formation using the document feeding means. Since the transfer material on which images have been formed through normal operations can be discharged to a separate discharge section, it is easy to take out the transfer material, and the structure is simple, which suppresses the increase in costs. It is possible to provide an image forming apparatus that can perform various functions.

[Brief explanation of the drawing]

1 and 2 each show an embodiment of the present invention, FIG. 1 is a side sectional view, FIG. 2 is an external perspective view, and FIGS. 3 to 6 are respectively the same as in FIG. 1. FIG. 7 is a side sectional view showing the main parts, FIG. 7 is a plan view showing the configuration of the operation panel, FIG. 8 is a configuration diagram showing the main parts of the control system, and FIG. 9 is a diagram for explaining the operation. DESCRIPTION OF SYMBOLS 1... Copying machine body, 2... Original table, 3... Automatic document feeder, 3k... Interrupt tray, 31... Interrupt detection sensor, 4... Exposure lamp, 10... Photosensitive drum, 22... Pair of delivery rollers, 30... Operation panel, 41.42... First and second paper ejection trays, 43.4
4... Conveyance roller pair, 71... Control unit. Applicant's Representative Patent Attorney Takehiko Suzue

Claims (1)

[Scope of Claims] A document table on which a document is placed, a document feeder for sending the document to the document table, an interrupting device provided in the document feeder, and a document placed on the document table. an image forming means for forming image information on a transfer material; first and second ejection sections from which the transfer material on which an image has been formed by the image forming means are ejected; and these first and second ejection sections. a switching means for switching between the parts, and a control means for controlling the switching means and distributing the transferred material on which the image is formed to the first and second discharge parts when the interrupting means is operated. An image forming apparatus characterized by: